Rich and Creamy Tonkotsu Ramen Broth Recipe

NOTE: This broth takes a full day or at least overnight to make. Plan accordingly. Unused broth can be stored in an airtight container in the refrigerator for up to three days or frozen for up to three months. This recipe is for the broth only. For a full meal, you will also need ramen-style noodles and toppings of your choice. Pictured toppings include preserved bamboo shoot, sliced braised pork belly, soft boiled marinated eggs, sliced scallions, raw enoki mushrooms, and blanched baby bok choy leaves.

Directions

1.

Place pork and chicken bones in a large stockpot and cover with cold water. Place on a burner over high heat and bring to a boil. Remove from heat as soon as boil is reached.

2.

While pot is heating, heat vegetable oil in a medium cast iron or non-stick skillet over high heat until lightly smoking. Add onions, garlic, and ginger. Cook, tossing occasionally until deeply charred on most sides, about 15 minutes total. Set aside.

3.

Once pot has come to a boil, dump water down the drain. Carefully wash all bones under cold running water, removing any bits of dark marrow or coagulated blood. Bones should be uniform grey/white after you've scrubbed them. Use a chopstick to help remove small bits of dark marrow from inside the trotters or near the chicken's spines.

4.

Return bones to pot along with charred vegetables, leeks, scallion whites, mushrooms, and pork fatback. Top up with cold water. Bring to a rolling boil over high heat, skimming off any scum that appears (this should stop appearing within the first 20 minutes or so). Use a clean sponge or moist paper towels to wipe and black or gray scum off from around the rim of the pot. Reduce heat to a bare simmer and place a heavy lid on top.

5.

Once the lid is on, check the pot after 15 minutes. It should be at a slow rolling boil. If not, increase or decrease heat slightly to adjust boiling speed. Boil broth until pork fatback is completely tender, about 4 hours. Carefully remove pork fat with a slotted spatula. Transfer fatback to a sealed container and refrigerate until step 7. Return lid to pot and continue cooking until broth is opaque with the texture of light cream, about 6 to 8 hours longer, topping up as necessary to keep bones submerged at all times. If you must leave the pot unattended for an extended period of time, top up the pot and reduce the heat to the lowest setting while you are gone. Return to a boil when you come back and continue cooking, topping up with more water as necessary.

6.

Once broth is ready, cook over high heat until reduced to around 3 quarts. Strain through a fine mesh strainer into a clean pot. Discard solids. For an even cleaner soup, strain again through a chinois or a fine mesh strainer lined with several layers of cheese cloth. Skim liquid fat from top with a ladle and discard.

This Recipe Appears In

J. Kenji López-Alt is the Chief Culinary Advisor of Serious Eats, and author of the James Beard Award-nominated column The Food Lab, where he unravels the science of home cooking. A restaurant-trained chef and former Editor at Cook's Illustrated magazine, his first book, The Food Lab: Better Home Cooking Through Science is a New York Times Best-Seller, the recipient of a James Beard Award, and was named Cookbook of the Year in 2015 by the International Association of Culinary Professionals.

He's currently raising a daughter by day, writing his second book by night (Now with 10% more science!), and is working on Wursthall, a beer hall in downtown San Mateo which will be open by the end of 2017.

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